	body{
    	margin:0;
    	height:100%;
    	background-color:#ecf5fa;
    }
    .div_1{
    	/*文字垂直居中*/
        /*padding:0 auto;*/
        /*position:absolute;*/
        position:absolute;
    	left:0;
    	top:0;    	
    	width:100%;
    	line-height:50%;
    	background-color:#336699;
    	color:white;
    }
    .div_2{
    	background-color:white;
    	width:1000px;
    	height:100%;
    	align:center;
    	margin:0px auto;
    	padding:20px;
    }
    h2{
    	margin:20px;
    	padding-top:20px;
    	color:#98c8ef;
    }
    span{
    	float:right;
    }
    #btn_1,
    #btn_2,
    #btn_3,
    #btn_4{
    	width:80px;
    	height:30px;
    	color:white;
    	background-color:#82b8da;
    	border:none;
    }
    a:link,a:visited{
		color:white;
    	text-decoration:none;
    }
    a:hover{
		color:red;
    }
    .div_3{
    	width:1000px;
    	height:100%;
    	background:#fafafa;
    	padding:8px 5px 0px 5px;
    	border:1px solid #e6e5e5;
    	margin-top:15px;    	
    }
    #h1,
    #h2,
    #h3,
    #h4{
    	font-size:10px;
    	color:grey;
    }
    .div_4{
    	border-bottom:1px solid #e6e5e5;
    }
	.tips{
		/*font-size:12px;*/
    	color:red;
    	/*font-weight:bold;*/
    }
	.tips_1{
		font-size:20px;
    }
    .div_5{    	
    	padding:10px 0px;
    }
    .submit{
    	width:120px;
    	height:30px;
    	background:#ccffff;
    	border:1px solid #99cccc;
    	border-radius:5px;
    	display:block;
    	margin:10px auto;
    }
    .footer{
    	margin:0 auto;
    	height:30px;
    	line-height:30px;
    	background:#e6e5e5;
    	color:#706c6a;
        font-size:5px;
    	text-align:center;
	}